No chemical flavoring is used in this ramen at all.

He is an expert in physical anthropology.

He is an expert in physical anthropology, conducting research on human evolution.

We will act according to the Mountain Standard Time.

He is an expert in ethology.

He had been holding a grudge against me for a long time.

The size of this molecule is a few angstroms.

The length of this molecule is about 1 angstrom.

Understanding the concept of 'Ha-line conversion sounds' is important in learning Japanese.

Alternating hot-cold baths have the effect of improving blood circulation in the body.